Read the problem. A cube with a side length of 0 point 5 meters is fully submerged in water. The density of water is 1000 the fraction with numerator kg and denominator m cubed What is the buoyant force acting on the cube?

The buoyant force equals the weight of the water displaced: F = ρVg. The cube’s volume is (0.5 m)³ = 0.125 m³, so F = (1000 kg/m³)(0.125 m³)(9.8 m/s²) = 1225 N. Therefore, the buoyant force is 1225 N, choice B.

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